公开(公告)号：DE10053494A1

公开(公告)日：2002-05-02

申请号：DE10053494

申请日：2000-10-27

Applicant: BASF AG

Inventor： STORCK SEBASTIAN ,  WEIGUNY JENS ,  DUDA MARK ,  COX GERHARD

IPC: C07D307/60 ,  B01J27/198 ,  B01J35/02 ,  B01J37/08 ,  C07B61/00 ,  C07C51/215

Abstract: The invention relates to a vanadium-, phosphorus- and oxygen-containing catalyst that is used for producing maleic anhydride by heterogeneous catalytic gas phase oxidation of a hydrocarbon carrying at least four carbon atoms in which the ratio of phosphorus/vanadium is 0.9 to 1.5. Said catalyst comprises particles with an average diameter of at least 2 mm and the composition has a x-ray powder diffraction pattern, obtained by irradiation with CuK alpha radiation ( lambda = 1.54 10 m), that produces in the 2 theta range of 10 DEG to 70 DEG a signal/noise ratio of

公开(公告)号：BRPI0606630A2

公开(公告)日：2010-01-19

申请号：BRPI0606630

申请日：2006-01-16

Applicant: BASF AG

Inventor： SCHINDLER GOETZ-PETER ,  CRONE SVEN ,  BORGMEIER FRIEDER ,  DUDA MARK ,  SIMON FALK ,  KLANNER CATHARINA

IPC: C07C5/333 ,  C07C11/167

Abstract: A process for preparing butadiene, comprising A) providing a stream (a) comprising n-butane; B) feeding stream (a) comprising into at least one first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to obtain a stream (b) comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen and low-boiling secondary constituents; C) feeding stream (b) and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating n-butane, 1-butene and 2-butene to obtain a stream (c) comprising n-butane, 2-butene, butadiene, low-boiling secondary constituents, carbon oxides and steam, wherein stream (c) has a higher content of butadiene than stream (b); D) removing the low-boiling secondary constituents and steam to obtain a stream (d) substantially consisting of n-butane, 2-butene and butadiene; E) separating stream (d) into a stream (e1) consisting substantially of n-butane and 2-butene and a stream (e2) consisting substantially of butadiene by extractive distillation; F) recycling stream (e1) into the first dehydrogenation zone.

公开(公告)号：BRPI0518872A2

公开(公告)日：2008-12-16

申请号：BRPI0518872

申请日：2005-12-07

Applicant: BASF AG

Inventor： CRONE SVEN ,  KLANNER CATHARINA ,  SCHINDLER GOETZ-PETER ,  DUDA MARK ,  BORGMEIER FRIEDER

IPC: C07C5/333 ,  C07C11/167

Abstract: A process for preparing butadiene, comprising nonoxidatively dehydrogenating n-butane from a stream (a) in a first dehydrogenation zone to obtain stream (b) comprising 1-butene and 2-butene; oxidatively dehydrogenating the 1-butene and 2-butene of (b) in the presence of an oxygenous gas in a second dehydrogenation zone to obtain stream (c) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; compressing and cooling (c) to obtain stream (d2) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; extractively distilling (d2) into stream (e1) comprising butadiene and stream (e2) comprising n-butane, hydrogen, carbon dioxide, and steam; compressing and cooling (e2) to obtain stream (f1) comprising n-butane and water and stream (f2) comprising n-butane, hydrogen, and carbon dioxide; cooling (f2) to obtain stream (g1) comprising n-butane and stream (g2) comprising carbon dioxide and hydrogen; phase separating water from (f1) to obtain stream (h1) comprising n-butane; and recycling (h1) into the first dehydrogenation zone.

公开(公告)号：EA009787B1

公开(公告)日：2008-04-28

申请号：EA200601234

申请日：2004-12-30

Applicant: BASF AG

Inventor： JOHANN THORSTEN ,  SCHINDLER GOTZ-PETER ,  BRODHAGEN ANDREAS ,  CRONE SVEN ,  DUDA MARK

IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: Изобретениекасаетсяспособаполучениябутадиенаизн-бутана, включающегоследующиестадии: A) подготовкуисходногогазовогопотокаа, содержащегон-бутан; B) подачусодержащегон-бутангазовогопотокаа, поменьшеймере, впервуюзонудегидрированияи неокислительноекаталитическоедегидрированиен-бутана, причемполучаютпотокгазообразныхпродуктов b, содержащийн-бутан, 1-бутен, 2-бутен, бутадиен, водород, низкокипящиепримесии, вслучаенеобходимости, водянойпар; C) подачупотокагазообразныхпродуктов b неокислительногокаталитическогодегидрированияи содержащегокислородгаза, поменьшеймере, вовторуюзонудегидрированияи окислительноедегидрирование 1-бутенаи 2-бутена, причемполучаютпотокгазообразныхпродуктовс, содержащийн-бутан, 2-бутен, бутадиен, водород, низкокипящиепримесии водянойпар, содержаниебутадиенав которомвыше, чемв потокегазообразныхпродуктов b; D) отделениеводорода, низкокипящихпримесейи водяногопара, причемполучаютпотокС-газообразныхпродуктов d, которыйв основномсостоитизн-бутана, 2-бутенаи бутадиена; E) подачупотокаС-газообразныхпродуктов d взонуперегонкии отделениесмесибутадиен/н-бутанв качествепотокацелевогопродуктае1, оставляяприэтомпотоке2, которыйв основномсостоитизн-бутанаи 2-бутена; F) возвращениепотокае2 впервуюзонудегидрирования.

公开(公告)号：EA009786B1

公开(公告)日：2008-04-28

申请号：EA200601233

申请日：2004-12-30

Applicant: BASF AG

Inventor： JOHANN THORSTEN ,  SCHINDLER GOTZ-PETER ,  BRODHAGEN ANDREAS ,  CRONE SVEN ,  BENFER REGINA ,  HILL THOMAS ,  DUDA MARK

IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: Изобретениеотноситсяк способуполучениябутадиенаизн-бутана, включающемутакиестадии: A) подготовкаисходногогазовогопотокаа, содержащегон-бутан; B) подачасодержащегон-бутангазовогопотокаа поменьшеймерев первуюзонудегидрированияи неокислительноекаталитическоедегидрированиен-бутанас получениемпотокагазообразныхпродуктов b, содержащегон-бутан, 1-бутен, 2-бутен, бутадиен, водород, низкокипящиепримесии, принеобходимости, водянойпар; C) подачапотокагазообразныхпродуктов b неокислительногокаталитическогодегидрированияи содержащегокислородгазапоменьшеймеревовторуюзонудегидрированияи окислительноедегидрирование 1-бутенаи 2-бутенас получениемпотокагазообразныхпродуктовс, содержащегон-бутан, 2-бутен, бутадиен, водород, низкокипящиепримесии водянойпар, приэтомв такомпотокегазообразныхпродуктовс содержаниебутадиенавыше, чемв потокегазообразныхпродуктов b; D) отделениеводорода, низкокипящихпримесейи водяногопарас получениемпотокаС-газообразныхпродуктов d, которыйв основномсостоитизн-бутана, 2-бутенаи бутадиена; E) разделениепотока C-газообразныхпродуктов d навозвратныйпотоке1, состоящий, восновном, изн-бутанаи 2-бутена, инапотоке2, состоящий, восновном, избутадиена, путемэкстрактивнойдистилляциии рециркуляциипотокае1 впервуюзонудегидрирования; F) вслучаенеобходимости, подачачастиколичестваиливсегопотокае2, состоящего, восновном, избутадиена, взонуселективногогидрированияи селективноегидрированиебутадиенадо 1- и/или 2-бутенас получениемпотока f, содержащего 1-бутени 2-бутена; G) вслучаенеобходимости, подачапотока f, содержащего 1-бутени 2-бутена, вдистилляционнуюзонуи

公开(公告)号：ES2253707T3

公开(公告)日：2006-06-01

申请号：ES03784039

申请日：2003-07-22

Applicant: BASF AG

Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

IPC: C07B61/00 ,  C07D307/60

Abstract: Procedimiento para la obtención de anhídrido de ácido maléico mediante oxidación en fase gaseosa catalizada por vía heterogénea de hidrocarburos con al menos 4 átomos de carbono con gases que contienen oxígeno en presencia de un compuesto de fósforo volátil en un catalizador que contiene vanadio, fósforo y oxígeno en una unidad de reactor de haz de tubos con al menos una zona de reacción enfriada a través de un medio soporte de calor, a una temperatura en el intervalo de 350 a 500ºC, caracterizado porque en la primera zona de reacción, respecto a la alimentación de educto, la temperatura de admisión y/o la cantidad de admisión de medio soporte de calor se ajustan de tal manera que la temperatura media del medio soporte de calor en la primera zona de reacción TSB (1ª zona), que resulta mediante promedio de temperatura de admisión y temperatura de descarga del medio soporte de calor, que cumple las fórmulas (I) y (II). Tss(1ª zona) TD (1ª zona)- TSafety (1ª zona) (I) TSB, Amax (1ª zona)- TA (1ª zona) TSB (1ª zona) TSB, Amax (1ª zona) + TB (1ª zona) (II) representando TD (1ª zona) la temperatura de paso de la primera zona de reacción, correspondiendo ésta a la temperatura media del medio soporte de calor TSB (1ª zona), en la que un aumento de una temperatura media alrededor de 1 ºC más bajo del medio soporte de calor, TSB (1ª zona) - 1ºC alrededor de 1ºC sobre TSB (1ª zona) provoca un aumento de la temperatura de punto térmico en la primera zona de reacción THS (1ª zona) de alrededor de 5ºC; representando TSafety (1ª zona) la temperatura de seguridad de la primera zona de reacción, y ascendiendo a 1ºC; representando TSB, Amax (1ª zona) la temperatura media del medio soporte de calor en la primera zona de reacción, a la que se alcanza el máximo de rendimiento en anhídrido de ácido maléico en el intervalo de TSB (1ª zona) TD (1ª zona); ascendiendo TA (1ª zona) a 20ºC; y ascendiendo TB (1ª zona) a 10ºC.

公开(公告)号：BRPI0409086A

公开(公告)日：2006-04-11

申请号：BRPI0409086

申请日：2004-04-02

Applicant: BASF AG

Inventor： SACHWEH BERND ,  HUBER GUENTHER ,  DUDA MARK ,  MATTKE TORSTEN ,  OLBERT GERHARD

IPC: B01J37/02

Abstract: A process for coating internals in a reactor, except for the coating of electrically heatable, at least partly open-cell foams, with a catalytically active material or a precursor thereof, in which an aerosol which contains the catalytically active material or the precursor thereof as a disperse phase is provided and the aerosol is passed through the reactor at a rate in the range from 0.1 to 4 m/s, which is established so that the disperse phase of the aerosol is deposited on the internals in the reactor.

公开(公告)号：DE10361822A1

公开(公告)日：2005-08-11

申请号：DE10361822

申请日：2003-12-30

Applicant: BASF AG

Inventor： JOHANN THORSTEN ,  SCHINDLER GOETZ-PETER ,  BRODHAGEN ANDREAS ,  CRONE SVEN ,  DUDA MARK

IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167 ,  C07C7/04 ,  C07C11/08 ,  C07C11/16

Abstract: The disclosure involves a process for preparing butadiene from n-butane. In the process, n-butane is first dehydrogenated autothermally under nonoxidative conditions to form a gas stream. The gas stream is then oxidatively dehydrogenated to form a second gas stream. From the second gas stream, a third gas stream containing n-butane, 2-butene and butadiene is obtained. From the third gas stream, a butadiene/butaine product stream is obtained and remaining n-butane and 2-butene is recycled into the first dehydrogenation zone.

公开(公告)号：BR0313026A

公开(公告)日：2005-07-12

申请号：BR0313026

申请日：2003-07-22

Applicant: BASF AG

Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

IPC: C07B61/00 ,  C07D307/60 ,  C07C51/00

Abstract: A process for the production of maleic acid anhydride by heterogeneous catalytic gas phase oxidation of hydrocarbons having at least four carbon atoms with oxygen-containing gas in the presence of a volatile phosphorus compound at a vanadium, phosphorus and oxygen-containing catalyst in a tubular reactor unit having at least one reaction zone cooled by a heat exchange medium at 350-500 degreesC. A process for the production of maleic acid anhydride by heterogeneous catalytic gas phase oxidation of hydrocarbons having at least four carbon atoms with oxygen-containing gas in the presence of a volatile phosphorus compound at a vanadium, phosphorus and oxygen-containing catalyst in a tubular reactor unit having at least one reaction zone cooled by a heat exchange medium at 350-500 degreesC. With respect to the addition of reactants to the first reaction zone, the addition temperature and/or addition amount of the heat exchange medium are such that the average temperature of the heat exchange medium in the first reaction zone (TSB(1. zone)) is described by formula (1) and (2). TSB(1.zone) at most TD(1.zone)-TSafety(1.zone) (1) TSB,Amax(1.zone)-TA(1.zone) at most TSB(1.zone) at most TSB,Amax(1.zone)+TB(1.zone) (2) TD(1.zone) = through temperature in the first reaction zone corresponding to the average temperature of the heat exchange medium at which a 1 degreesC increase in the average temperature of the heat exchange medium results in a 5 degreesC increase of the hot spot temperature of the first reaction zone THS(1.zone); TSB(1.zone) = average temperature of the heat exchange medium; TSafety(1.zone) = safety temperature of the first reaction zone and is 1 degreesC; TSB,Amax(1.zone) = average temperature of the heat exchange medium in the first reaction zone in the region TSB(1.zone) of no greater than T (1.zone) corresponding to the maximum yield of maleic acid anhydride; T (1.zone) = 20 degreesC; T (1.zone) = 10 degreesC

公开(公告)号：DE50202497D1

公开(公告)日：2005-04-21

申请号：DE50202497

申请日：2002-07-17

Applicant: BASF AG

Inventor： HIBST HARTMUT ,  NOE RALF ,  EXNER MICHAEL ,  DUDA MARK

IPC: C07B61/00 ,  C07D307/60

Abstract: A process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of an n-butene-containing hydrocarbon stream by means of oxygen-containing gases in a shell-and-tube reactor having two successive reaction zones, where the first, feed-side reaction zone contains at least one catalyst which is suitable for the oxydehydrogenation of n-butenes to 1,3-butadiene and the second, product-side reaction zone contains at least one catalyst which is suitable for the oxidation of 1,3-butadiene to maleic anhydride, is carried out using a shell-and-tube reactor which has at least one heat transfer medium circuit in the region of the first, feed-side reaction zone and at least one further heat transfer medium circuit in the region of the second, product-side reaction zone.